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Natasha_Volkova [10]
3 years ago
15

I NEED HELP ON KEY CONCEPT!!

Biology
1 answer:
levacccp [35]3 years ago
8 0
Spoons are metal and to find metal bonds you need to use I microscope
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Cross bridge formation between myosin heads and actin molecules is caused by the elevation of calcium ion concentration in the c
almond37 [142]

Answer:

sarcoplasmic reticulum deteriorates and ATP production is stopped

Explanation:

Rigor mortis is the third stage of death characterized by stiffening of joints and muscles in body. The stiffening occurs because muscles are not able to return to the relaxed state. There are two reasons for rigor mortis, depletion of ATP and increase in calcium concentration in cytosol. Due to these factors the actin-myosin crossbridge is not able to break and the muscles remain in contracted state.

Sarcoplasmic reticulum deteriorates and calcium is released into the cytosol. Sarcolemma ( covering of muscle fiber ) also breaks down releasing extra calcium into the cytosol. Calcium is responsible for formation of actin-myosin cross bridge and when its concentration increases the bridge is formed continuously leading to stiffening of muscles and joints.  

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3 years ago
What functions do endocytosis and exocytosis carry out for the cell ?
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Endocytosis carry substances into the cells, and exocytosis is what the cell rejects.
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3 years ago
Compare the responsibility that local municipalities have to the FDA with the responsibility that bottled water companies have.
lisabon 2012 [21]
local municipalities have to the FDA with the responsibility that bottled water companies have. Local have to test their water supply daily and report to the FDA monthly. Bottled water comapnies do not have to report anything to the FDA.
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4 years ago
Potential Energy on the way up the rollercoaster
Nana76 [90]

Answer: Because The potential energy you build going up the hill can be released as kinetic energy — the energy of motion that takes you down the hill. Once you start cruising down that first hill, gravity takes over and all the built-up potential energy changes to kinetic energy. Gravity applies a constant downward force on the cars.Potential energy is the energy an object has as a result of its position. Potential energy is stored energy that has not yet been released. Gravitational potential energy is potential energy that results from an object's position in a gravitational field, and is equal to the object's weight multiplied by its height.

hope this helps have a nice day❤️

Explanation:

8 0
3 years ago
What does a mass extinction look like in the fossil record?​
gtnhenbr [62]
There is less diversity hope this helps
8 0
3 years ago
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